It is required to pump cooling water from storage pond to a condenser in a process plant situated 10 m above the level of the pond. 200 m of 74.2 mm i.d.pipe is available and the pump has the characteristics given below. The head loss in the condenser is equivalent to 16 velocity heads based on the flow in the 74.2 mm pipe. If the friction factor -0.003, estimate the rate of flow and the power to be supplied to the pump assuming -0.5. Q (m/s) 0,0028 0.0039 0.005 0.0056 0.0059 Ah (m) 23.2 21.3 18.9 15.2 11.0

Problem 2 A pump is needed in a water supply system. The water is being pumped out of a ground-level storage reservoir with water surface elevation of 149.27 ft and needs to pass over a hill 2 miles away, where the pipe centerline is at elevation 200.00 ft. The flowrate is 22 mgd, pipe diameter is 24 inches, Hazen-Williams friction factor is 110, and pressure at the crest of the hill must be at least 20 psi. (a) What head must the pump provide? (b) How much power will be added to the water? (c) What size motor should be purchased if the pump/motor combination has an efficiency of 80 percent?

For the hydraulic system of Figure 8, the following data are given: The pump is adding2.984kW to the fluid.(a) Pump flow is 0.00158 m3(b) The pipe inside diameter is 0.0254m.(c) The specific gravity of the oil is 0.9.(d) The oil tank is vented to the atmosphere.(e) The head loss HL between station 1 and 2 is 12.19m.(f) The elevation difference between stations 1 and 2 is 6.096m.Find the pressure available at the inlet to the hydraulic motor(station 2).

Estimate the entrance length for motor oil for the following two cases: (a) SAE10W-30 oil flowing through a 0.1-in diameter tube in an engine at 0.01 gal/s and (b) SAE 10W-30 oil flowing through a 6-in diameter pipe at 500 gal/s.